Name: Mini Bluetooth 4.1 Decoder Board Audio Receiver BT4.1 with Micro USB - Electra Store
SKU: QW-79887
Price: 130.00 EGP
Availability: InStock

Bluetooth MP3 Decoder Board Module Amplifier Board Modification DIY Audio Receiver 4.1 Module

Mini Bluetooth 4.1 Decoder Board Audio Receiver BT4.1 with Micro USB

130.00 EGP

This Bluetooth MP3 Decoder Board is an all-in-one audio solution featuring Bluetooth 4.1, MP3/WAV playback (via TF card/USB), FM radio, and a built-in amplifier (3W–5W per channel). Ideal for DIY speakers, car audio upgrades, and home stereo modifications, it supports wireless streaming, local playback, and AUX input—all in a compact, easy-to-integrate module.

SKU: QW-79887 Categories: Audio, Bluetooth, Modules

Description
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Description

🔹 Key Features

✅ Multi-Playback Modes

Bluetooth 4.1 (A2DP for music, HFP for calls)
TF Card (MicroSD) MP3/WAV Playback
USB Flash Drive Support (U-Disk Mode)
FM Radio (87.5–108MHz, with auto-scan)
AUX 3.5mm Input (Wired audio backup)

✅ Built-in Audio Amplifier (3W–5W x 2) – Drives small speakers directly.
✅ Full Decoder Support – Handles MP3, WAV, WMA, FLAC (varies by model).
✅ LCD Display (Optional) – Shows track info, volume, and mode (on supported versions).
✅ IR Remote Control – Adjust volume, skip tracks, switch modes.
✅ 5V–12V DC Power Input – Flexible voltage (USB 5V or 12V adapter).

📌 Applications

🔊 DIY Bluetooth Speakers – Turn passive speakers wireless.
🚗 Car Audio Mods – Replace old cassette/CD players.
📻 Home Stereo Upgrades – Add Bluetooth to vintage systems.
🎤 Karaoke & Portable PA Systems – Small-scale amplification.
🛠️ Embedded Audio Projects – Robotics, interactive displays.

🔧 Technical Specifications

Bluetooth Version: 4.1 (Class 2, ~10m range)
Supported Codecs: SBC (A2DP), MP3, WAV, WMA
Amplifier Output: 3W–5W per channel @ 4Ω (TDA2822M/PAM8403 chip)
Power Input: DC 5V–12V (USB 5V or 12V adapter)
Audio Output: Stereo L/R (via screw terminals or 3.5mm jack)
Frequency Response: 20Hz–20kHz (±3dB)
Signal-to-Noise Ratio (SNR): ≥75dB
Dimensions: ~50mm × 50mm (varies by model)

⚙️ How to Use

Power Up – Connect 5V–12V DC (e.g., USB power bank or 12V adapter).
Select Mode – Press MODE to switch between Bluetooth/TF/USB/FM/AUX.
Pair/Play – For Bluetooth, pair with phone (default name: “MP3-DECODER”).
Connect Speakers – Wire to L+/L-/R+/R- terminals (4Ω–8Ω speakers).

📂 File Playback (TF/USB)

Supports folder navigation (max 32GB FAT32).
Files must be named 001.mp3, 002.wav, etc. (auto-sorted).

🚀 Why Choose This Board?

✔ All-in-One Audio Hub – No need for separate amps/decoders.
✔ Plug-and-Play – Works out of the box with minimal wiring.
✔ Budget-Friendly – Cheaper than buying individual components.
✔ DIY-Friendly – Easy to embed in custom enclosures.